Paper-box machine.



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PAPER BOX MACHINE. APPLICATION FILED JAN.23. 1911.

Patented Feb. 11, 1913.

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PAPER. BOX MACHINE.

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PAPER BOX MACHINE.

APPLICATION FILED 11111.23. 1911.

Patented Feb. 11, 1913.

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APPLICATION FILED JAN.23.1911.

Patented Feb. 11, 1913.

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CLAYTON GUY COOKE, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE GEORGE M.GRISWOLD MACHINE COMPANY, OF NEW HAV EN, CONNECTICUT, A CORPORATION 0FCON NECTICUT.

rArER-Box MACHINE.

s pecification of Letters Patent.

To all whom it may concern Be it known that I, CLAYTON GUY COOKE,citizen of the United States, and resident of New Haven, in the countyof New Haven and State of Connecticut, have invented certain new anduseful Improvements in Paper-Box Machines, of which the following is aspecification.

This invention relates to new and useful improvements in paper boxmachines and refers particularly to that class of machines designed tomake the inner or slide member of a two part tobacco, cigaretee, matchor like box, and the invention resides particularly in means forsuitably creasing, cutting, gluing and folding such an inner box memberwhereby the same may be formed complete with its opposite end portionsturned over, in and secured against the inner surface of the adjoiningend portions of the box whereby said ends are materially reinforced.This class of box has heretofore been made by handonly, and aside frombeing more expensive is not as good as that formed by my presentmachine, since the sides could not be made tostand up at if right angleto the bottom, thus producing somewhat of a dish shaped box that wouldnot slide in and out of the tube as freely, nor was it as durable asthat which I now form by this machine.

It is therefore the purpose of this invention to produce a machine whichis of a comparatively simple, durable and compact construction,consistent with the Work 'to be performed, and whereby a strip of paper,of a proper width may be successively drawn from a roll and fed throughthe machine to form the inner or slide members of boxes of the aboveclass, in rapid-succession, all perfect and complete ready to be filledand slid into the tubes; to provide a machine whereby the blanks may becreased and reversely creased along the lines of the folds of the box toproperly break the paper so as to insure the sides of the box beingfinally disposed at a right angle to the bottom and whereby the foldededges and corners will be formed sharp and square; further toprovidemeans for turning up, over and in the two extreme end portions ofthe box blank and sides which have previously been turned in toward eachother; to thus construct and form a box in a way to cover all raw endsand edges except the top edges of the'two sides of the box, and finallyto thus produce a machine for reinforcing and member of a paper box,where the greatest strain occurs, as for instance, when pushing moval ofits contents.

With these and other objects in view the invention consistsin theconstruction and chine complete, with a strip of paper therein as in theact of being worked into boxes. Fig. 2, is a side view of said machineas seen from the near or bottom side of Fig. 1. Fig. 3, is alongitudinal vertical section through the machine, taken on line 3-3 ofnear side of the center. Fig. 4, is a vertical cross section lookingtoward the rear, and taken on line 44 of Fig. 2. Fig. 5,is an enlargeddetail plan View of the bed of the blank creasing, and box cornercutting mechanism. Fig. 6, is a detached plan view of the verticallyoperating gatethat carries the creasing blades and corner cutters, andwhich operates in conjunction with the bed plate shown in Fig. 5. Fig.7, shows an enlarged vertical cross sectional View of the feed andcreasing rolls, whereby the prelimistrengthening the ends of a ,tray orslide in or pulling out the tray, as in the manner of opening and closmgthe box for the. re-.

Figure 1, shows a plan view of my ma Patented Feb. 11, 1913.

sticking the same against the inside of the box, thus inclosing the fourfree ends of the a novel combination and arrangement of Fig. l, andwhich as will be noted is on the nary cross grooves are formed in theunder side of the paper. Fig. 8, shows a similar enlarged vertical crosssectional view of the I by the-rolls shown in Fig. 7. Fig. 9, shows aplan view of a portion of the prepared paper strip with creases andcorner cuts formed therein as produced by the mecha" nism just referredto and shown in detail in Figs. 5 to 8 inclusive. Fig. 10, illustrates amodification, 'showing a reversed construcof finally folding andfinishing a box.

tion of rolls and creasers from that .just de-' scribed, and 'wherebythe paper is first creased down instead of up as shown in Fig.

.7, and next creased back or upward, instead of down as shown in Fig. 8.Fig. 11, shows an enlar ed plan view, of the foldingmeclranism ilustrated in the preceding Figs. 1, 2

ofthe two co-acting setsof folding devices removed. Fig. 12, is asimilarly eni jl'ged plan view, of themechanism shown in Fig. 5, thoughin a closed position, as in theFact 1g. l3,'is a correspondinglyenlarged sectional end view, as seen from lines. 13-13 of Figs. 2 and 12and showing the cutter-and end of former, over which the box isformed,and the two rotary folders for turning in the ends of the box blank.Fig. 14, showsa sectional elevation of the head, slides and folders, asseen from line 1414 Fig. 11, looking in the direction of the arrow. Fig.15, is a central vertical longitudinal section through the folding andforming mechanisms shown in Figs. 5 to 8 inclusive, the position of thepartsbeing in a slightly different position from that shown in either ofsaid Figs. 5 to 8. Fig. 16, is a horizontal longitudinal sectional planView of the s'aid'forming and folding mechanisms just described, and

taken on a central line indicated by 16on Fig. 15. F igs.'l7, to 21inclusive, are-diagrammatical views to illustrate the several operationsof the folders in thefolding of a box after the same has been creasedand cut,

and, Fig. 22, shows a perspective view of atray or slide member of thebox, such as my machine is designed to produce.

Referring in detail, to the characters of reference marked upon thedrawings 25 indicates the bed ofthe machine which as 1 box.

a shaft journaled in bearings in the top portion of the opposite sidesof the glue tank 32 which latter is secured to the bed of the machine inany suitable manner, and may be provided on its under side with a gasflame,

steam-pipe or other means of heating the glue, not shown. I A drivingshaft-33 is arranged crosswise of the machine and is journaled insuitable hangers 34 secured to the under side of the bed of the machineas shown in Fig. 4 and 1s deslgned to operate the several parts pf themachine through suitable connections,

and .sets of mechanisms, which willinowzl ie described in theirrespective orders: This shaft is provlded upon oneend with a pulley .35through which a belt connection is made for driving the shaft andmachine, and upon the opposite end of the shaft is mounted the I i usualfly wheel 36.

and 3 but with paper guides and top plates 37 represents a gear mountedupon the driving shaft which meshes with and drives an idler gear 38rotatably mounted upon a stud 39 secured to the side of the bed. Thisidler in turn meshes with and drives a third gear40 mounted upon a stud40 secured to one of the side uprights 41- att-ached to the top of thebed of the machine. the near side of this gear 40 is a disk seg- Securedto ment 42 which together with a pin 43 upon the said gear respectivelyengage the concave peripheral surfaces and the transverse groovesurfaces of the cam 44, which con nected parts constitute what is knownas a vGreneva stop movement, and is designed to transmit a successivelyrotary movement, to the feed rolls for successively moving the paper apredetermined distance with each operation of said stop movement, andwhich is obviously sufficient to form a blank for the The cam 44 of thesaid Geneva stop movement is mounted upon the lower roll shaft 45 whichcarries the lower feed and creasing roll 46 having the longitudinalcreasing blades 47 set in its periphery. This feed roll and its shaftare connected to drive the upper feed roll 48 through a pair of gears 49mounted upon the shafts of the respective rolls and whereby they aresuccessively .and simultaneously rotated in a forward direction to drawthe strip of paper A, around the guide roll 31, and feed it forvward tobe creased, cut and folded. A series of longitudinal grooves 50 areformed in the upper feed roll 48 and are so spaced as to register andco-act with the blades 47 of the lower feed roll 46 as to transverselycrease the strip of paper at proper intervals, during its movementthrough the rolls so'as to form a preliminary crease aa in the paperalong the :lines where it is to be later recreased and finally folded.

The shaft carrying the glue wheels 30 is a connected by a train of gears51, 52, 53, and

54 with roll shaft 45, and from this connection it will be noted, theglue wheels like the feed rolls are successively operated, that is,operated at such times as when the paper is being moved forward. It willbe further 0 noted that the peripheral surfaces of the wheels are cutaway so that they'come in contact with and glue the end portions of theedge of the paper only, thus placing the glue where required, to stickthe ends of the paper in the final folding of the blank and forming ofthe box.

There are two uprights 41 bolted to the opposite side portions of thetop of the bed of the machine and jointly serve to support a top plate55, the feed rolls and other connected and operative parts as will beapparent from the several figures of the drawings. Suitable brackets 56are secured to the .end of the top plate 55v for carrying the guide 0roll 31 while the bearings 57 upon the top 48 as is also clearly shown.I I The strip of paper -A is guided through the machine by means ofsuitable longitudinal and cross guide strips 58, 59 and 60 respectively.I employ two guide strips 58 which are secured in part to the top plate55 and thus form side guides against which the opposite side edges ofthe paper strip move, while the other two longitudinal strips 59 arearranged above the paper and are supported by the cross strips 60 thatin turn are fastened to the said side guides 58. This construction formsan inclosure under which the paper strip may be freely moved though itis prevented from any sidewise or buckling movement, thus insuring itspositive and successive movements with the movement of the feed rollsand likewise its proper positioning during the creasing, cutting andfolding operations. The said top bed is provided with a transverseopening 61 (see Fig. 3) at a point where the rolls engage the paper topermit of theproper feeding and roll creasing operations, and is furtherprovided upon its top side and in line with the movement of the paper,with a recess 62 and holes 63 to receive a die plate 64 and cornercutters 65, respectively, (see Figs. 3, 5, and 6). The die plate issecured in the recess by means of screws 66 and is provided in its topface. with two cross grooves 67, side grooves 68, 69 and 70 for creasingthe several corner edge portions of the box blank as will later bedescribed. The edges of the holes 63 obviously operate in conjunctionwith the corner cutters 65 to sharply shear out the four notches b inthe strip of paper in the proper places to remove the surplus stock fromthe corners of the box blank to permit the ends to be properly foldedtogether.

71 represents a gate which is mounted upon a pair of verticallyreciprocating rods 65 72 mounted in bearings of the before mendirectiononly.

side of the plate serve for the upper feed roll tione'd top plates andthe bed of the ma' chine, respectively, and are connected to bereciprocated by a pair of eccentrics 7 3 mounted upon the driving shaftin a man-- nor to impart'a continuous reciprocatory movement to the gatewhich carries the bethe groove 67 and thusserve to crease thecrossgrooves a in the paper to form the reverse creases H as indicatedin Figs. 8 and 9 thereby more completely breakin the paper to insure theside portions 0 the box to be finally disposed and to remain in, a ri htangle position,-which would not be possible if the aper were creased inone he blades 68", 69* and 70 operate upon the side portions of thepaper stripin conjunction with the grooves 68, 69 and 70 to formlongitudinal creases in the strip along the several lines of the'foldsof the end portions of the box as will again be referred to. In Fig. 9 Ihave shown a; portion of the paper strip, oneend of which as beenoperated upon'by the feed rolls only, while the other end has inaddition, been operated upon by thecreasing blades and corner cutters tofinally prepare the stri to be cut into blanks along the lines indicatedby c, which cutting is done just; 4-

prior to the forming of the box.

To the forward end of the top plate 55 is hinged (see Figs. 3 and 4) asby means of a pin 74, an extension 75 which together with the beforementioned guides 58, 59 and attached thereto, serve to direct theprepared paper strip to the cutting and folding mechanisms. The forwardend of this extension is supported upon posts 76 attached to a portionof the frame 88 of the machine, and connected to said extension byadjustable andremovable nuts, whereby the said extension may be raised,lowered or removed should occasion require, as in the adjustment of'thepaper, or for the adjustment or repairin of the folding mechanism laterto be described. The forward end of this extension and its guides arebent down so as to deflect the line of travel of the paper strip from ahorizontal to a vertical position and in which osition the blank issevered from the strip and folded between the head and formers of thefolding mechanism later to be described.

Upon the rear end of the machine (see Figs. 1, 2, 3 and 13) is bolted ahousing 77 in which are mounted several slides includingacutter slide 78carrying ablade 79 and designed to be reciprocated 1n ways formed in thetop plate 80 of the housing 77. This cutter slide is linked to a rockerlever 81 mounted upon a pivot 82 secured to a bracket 83 attached to theend of the bed 5o block slightly in advance and to its lower end isconnected a rod St the opposite end of which is connected with the camor eccentric 85 mounted upon the driving shaft whereby the cutter isreciprocated backward and forward to shear off the blanks from the stripin conjunction with a plate 86 mounted in the top cross portion 87 of asecond housing 88 secured to the intermediate forward. portion of thebed of the machine, and in which a further series of slides and foldersare operatively mounted. A former slide 89 mounted within the firstmentioned housing 77, (see Figs. 11, 12, 13 and is designed to be.recipro- 15 cated, and like the cutter slide is connected by a link witha lever 90 mounted upon the same pivotal pin 82 and similarly connectedby a rod 91 with a cam 92 mounted upon the main driving shaft andwherebya resides of the slide 89 and a spreader plug 96- mounted therebetween.The tendency of the said springs is to normally force the two formerplates in against the tapered outer end portion 97 of the plug 96,seated within a bore of the slide and against a spring 98. A pin 99 issecured in the slide and freely passes through a slot 100 of the-plugand serves to limit the outward movement of the same as indicated inFig. 11, thus allowing the springs 95 'to normally close the said platestogether. These plates are again expanded when the slide 89 and plug 96move forward to grasp the pa 1' against the head block 101 arranged witin the before mentioned housing, 87 and secured to the bed of themachine by means of a bolt 25. In this movement (see Figs. 11, 16 and17) the plug obviously engages the pa er and head the former plates, andis thus shoved in against the resistance of the spring 89 therebyforcing the two plates out in a proper position to have the box formedtherearound. The

5 purpose of this construction is to providea former, of proper shapeand size over which to form the box and from which the completed box canbe freely stripped without disturbing the turned in end portions. Afterthe box is formed and the slide starts to return, the plug remains incontact with the box and block for an instant, causing the former platesto first ride inward and down the incline 97 of the plug thereby freeingthe ends of the box and leaving it in position to be stripped off by theupper and lower stripper plates 102 and 103 secured to the forward endsof the to plate 80 and the lower part of the housing 77, respectively. Awayis formed in the under side of the housing and beneath the stripper103 to receive a bottom slide 104, the forward central portion of whichis cut away to form opposite extended corner bearings 105 (see Figs. 7512 and 13) which are also extended down through the bed of the machine.The slide 104 is reciprocated throughthe medium of an integral rack 106cut in its under side and engaged by a segment of a gear 107 0 mountedupon a shaft 108 j our'naled in suitable bearings of the bed. To'theouter end of this shaft (see Figs. 1 and 2), is secured an arm 109 whichis connected by a link 110 with a cam 111 mounted upon the main driv- 35I ing shaft 33, and thus it will be understood that with each rotationof the driving shaft the said slide 104 is given a forward and returnmovement. Within the bearings 105 is mounted vertical spindles 112carrying a 90 special; form of Vertically extended blade 113 whichconstitutes a rotary folder for turning in and around and sticking theextreme end flaps h of the paper. These spindles' and formers areoperated through a 35 pinion 114 secured to the lower ends thereof andconnected by racks 115 slidably mounted in a bearing 116. Each of theseslides are provided with a depending stud to which one end of a link 117is attached 100 the other end being similarly connected to arms 118secured to a rocker shaft 119 journaled in hangers 120 attached to theunder side of the machine. A third arm 121 is secured to the inner endof the machine, as 105 seen in Fig. 2, and is provided with a roll toengage the peripheral surface of the cam 122 and whereby the said rockershaft 108, the rack, slides, pinions and folders are operated inconjunction with the spring 123 110 secured intermediate of one of thearms, 118 and the bed of the machine. These end folders 113 thus haveboth a forward and backward movement as imparted by the slide and inaddition are, given a rotary m5 movement whereby they are rotatedvertically when the slide is in-its extreme forward position, so as toturn inand stick the end flap h of the paper, which is the finaloperation in the forming of the box and that no just preceding thestripping of the box from the former plates. The head block 10110 catedwithin the second housing 88 serves as a fixed part against which thebox blank is clampedby the former. The face .of the 125 head block asshown, is rectangular in shape and of a size corresponding to that ofthe length and breadth of the'box. The sev' .eral slidable formers andfingers for turning the respective edge portions of the box out at aright angle, as in the forming of a box, are slidably mounted within thehousing 88 and intermediate of it and the said block, and are connectedto operate in their respective orders to turn in the said edge portionstO fOllll the sides and ends as will next be described. 1

The top and bottom slides 124 are the first to operate upon the blankand serve to bend the sides of the paper blank formed along the doubleor recessed lines dd and deflect the side portions ee thereof to theopposite sides of the former plates 93, to form the sides of the box,and as is illustrated in Fig. 18. The next to operate are the fourcorner fingers 125 which move forward and serve to turn in the fourcorner flaps f f f 7 from the longitudinal position shown in Fig. 18 toa transverse position shown in Fig. 19, for the formation of a part ofthe end of the box. The third set of formers serve to operate upon theend portions g-g of the box, and include the two side mem bers 126 whichafter deflecting forward the said end portions of the box also serve inconjunction with the before mentioned rotary folders 113 which closeover and stick the extreme end 72. of the blank of the inside of the endportions e; f and g of the box and against the resistance of the saidside members 126. These several fingers are connected to a pair ofreciprocatory slides which in turn are connected to be operated from themain shaft 33 and will be described in detail in the respective ordersof operation, as for instance the top and bottomformer slides 124, (seeFigs. 3, 11, 14 and 15), are secured to a block 127 the'ends of whichare. grooved to engage ways 128 of a pair of side slides 129 andintermediate of which the said block is reciprocated in a manner tomovethe top and bottom folders forward and'backward. This block 127 isprovided with rearwardly disposed ears to which one end of a lever 130is pivotally connected. The intermediate portion of this lever ismounted upon a pivotal pin 131 secured in bearings upon the under sideof the bed. The lower end portion of this lever is provided with a rollto engage the groove 132 in the side of the before mentioned cam 92. Inaddition to the reciprocatory movements of these top and bottom folderslides, I also provide for a slight vertical movement whereby the sidesof the box after being disposed forward to a right angle position, areslightly closed in along the sides of the former plates 93 to set thetwo sides of the box, and to insure the same being finally dispds ed atand remaining in a right angle position with relation to the bottom ofthe box. This mechanism includes the formation of a cam groove 133 inthe under side of the top member 87 and in the top side of bottom memberof the housing 88. The

forward end of these grooves are beveled out to be engaged by thebeveled faced pins 134 and whereby when thesaid slides near the end oftheir forward movement they are sprung in and against the paper. 7 Thetwo main side slides 129 are slidably mounted against the opposite sidesof the head block 101 and intermediate thereof and the side portions ofthe housing 88.

They are connected by means of a bolt 135 i so as to be operatedsimultaneously from the main driving shaft, and in this respect the saidbolt is connected by links 136 with a second bolt pivotally connected tothe upper end of a rocker lever 137 mounted-on a pivotal shaft; 138secured in a bearing at-. tached to the under side of the bed. Theopposite end of said lever is provided with a roll for the engagement ofa groove in the side of a cam 139 mounted upon the main driving shaft 33and whereby the said parts like the other mechanisms are g ven acomplete forward and return movement with each rotation of the shaft.The four corner folder fingers 124, (see Figs. 14 and 15) are pivotallyconnected as at .140 to the ends of the slide 127 and are freelydisposed longitudinally along the cutaway inner corner portion of theside slides, in a way to be moved forward and .95

backward with the movement of. the said slide block. The fingers areprovided with an irregular shaped groove 141 that is engaged by a pin142 seated in the sides of the side slides which by their forward movemoment impart an inner and outer vertical .1 movement to the forward, endof the said fingers 124, at the proper instant to turn down the cornerflaps f of the box from the position shown in Fig. 18 to that shown in 5Fig. 19, and then to be disposed up out of the way, to allow the sidefolders 126 to act. These fingers are obviously moved forward by theslide block 127, but are thus operated to form the corner flaps f by theforward 0 movement of the side slides 129 through the pin and grooveconnections just referred to. After the end flaps g and it have beenturned forward by the side folders 126, as shown in Fig. 20, the rotaryfolders 113 are given substantially a half turn, which turns the bladehalf around from an outer to an inner position as shown in Figs. 16 and21. This movement of the blades of the rotary folders carries the endsof the paper around, '120 folding it over the edges of the corner flapsf and sticking its glued faces h-h thereagainst and to the portions ofthe end of box, and against the then fixed position of the side folders126. Immediately following the extreme forward movement of the rotaryfolders, the side folders 126 are given. an inward movement which actagainst the sides of the blades of the rotary formers, to closely pinchthe several thicknesses of paper together and insure their sticking.This closing movement of the side folders 126 is obtained through theduplicate mechanisms shown in Figs. 1, 2, 11, 12 and 16, and in part ismounted in the forward ends of the side portions of the housing 88 whichare cut awa to receive a bell crank lever 143 that is pivoted to thesaid sides through the medium ofa vertically disposed pin 14A. Theforwardly disposed arm of this lever carries the roll 1 15 that engagesthe outer sides of the said side folders 126, while the outwardlydisposed arms of the said bell crank levers are connected as by means ofa spring 146 with a stud 1&7 at- 'tached to the side portions of thehousing.

. angle position. These side folders are pivposed pins oted to the sideslides 129 by vertically dis- 150 and whereby they are positivelycarried back and forth with the said slides, but permitted to swing inand out as a result of the engagement and release of the'said levers. I

The several operations of the machine for creasing, blanking and cuttingof the box blank and the folding of the box have been hereinbeforedescribed in detail with the description of the construction of therespective mechanisms and it is therefore thought that a further generaldescription of the I machine will'not be necessary and is consequentlyomit-ted.

Having thus described I claim and desire to secure by my invention whatLetters Patent is- 1. In a paper box machine of the class described, thecombination with box blank preparing mechanism, of means for turning outportions of the blank at substantially a right angle, rotary folders forfolding over and in the extended end portions of the box blank and forcompressing and sticking the said folded over end portions of the blankagainst the blades of the rotary folders to the inside of the box toretain the parts in position.

2. In a paper box machine of the class de scribed, the combination withcutting and creasing mechanism, of means for folding out the severalside .portions of the box blank at substantially a right angle, a pairof vertically arranged folders for folding over and in the ehd portionsof the box blank in and in,

a way to secure it to the inside of the end portions of the box and aslide upon which the rotary folders' are mountedto move the same to andfrom the box blank.

3. In a paper box machine of the class described, the combmation withbox blank pre parin mechanism, of means for turning out the si e and endportionsof the box blank at substantially a right angle, rotary foldersfor turning over and in the extended end portions of the box blank andfor further compressing and sticking the said folded over end portionsof the blank against the inside of the box.

4E. Ina aper box machine of the class described, the combination withmechanism for creasing and feeding a continuous strip of paper, meansfor further creasing, cutting and preparing a box blank, folders forrespectively turning up the side corners and end portions of the boxblank at a right angle, and rotary folders having eccentrically arrangedblades for further folding over and in the extended end portions of thebox and sticking thesame to the inner side of the box.

5. In a paper box scribed, the combination with mechanism for gluing,feeding, creasing and blanking a continuous strip of paper, ofmechanisms for respectively turning out the sides, corners and endportions of the prepared box blank and disposing the same at a rightangle to the body, and rotary folders for folding over and in such rightangled disposed end ortions of the box in a wa to cover the e ges of thecorner portions 0 the box and to press the previously lued end portionsagalnst itself and that o the sides of the corner portions in a way toform a box with reinforcing side or end portions.

6. In a box forming machine, the combination with blank feeding creasingand forming devices, of a former against which the box blank is held,slides for disposin the edges of the blank against the sides 0 theformer, fingers for turning in the free corner ends of said sideportions,- end form'- ers for disposing the ends of the paper blankagainst the said previously disposed corner portions, and rotary foldershaving eccentrically arranged blades for further folding over and in theextended end portions of the ends of the box blank to unite andreinforce the end portions of the box.

7. In a paper box machine of the class described, the combination withfeeding, gluing, creasing, blanking and cutting devices, of means fordisposing the several side and end portions of the box blank out at aright angle and against each other, a pair of rotary folders designed toengage the extended end portions of the box and fold them over toreinforce and strengthen said end portions of the box, and areciprocating machine of the class de- 1 slide in which the rotaryfolders are mounted and adapted to move the same to and from the boxblank as occasion requires.

8. In a paper box machine of the class described, the combination withsuitable clamping devices, of a series of folders for engaging anddisposing the several edge portions of a box blank out substantially ata right angle,- of rotatable folders for folding over and in theextended end portions of said sides to reinforce and strengthen thesame, means for moving the rotatable folders to and from the box blank,and means for imparting a rocker movement to the said folders.

9. In a paper box machine of the class described, the combination withsuitable box blank reparing devices, of an expansible and collapsibleformer over which the box is formed, and means for folding over theseveral side portions of the box blank against the former to. form a boxand rotary folders to turn in the extended end por- 5 tions of the blankagainst the inside of the 10. In a paper box machine of the class toautomatically operate the said sides block,-

lengthwise of the box, and means for turnportions of the box blankeluding a pair of expandible plates against which the said box isformed, means to normally hold said plates closed together, and atapered plug arranged between the plates to spread the same. Y

12. In a paper box machine of the class described, the combination witha fixed head of a slide reci rocatingly mounted with respect to saidblock, former plates slidably mounted in the face of the slide to engagethe blank, means arranged between the plates to engage the head block tooperate and extend the plate, and means for folding a box blank over thesaid former plates while in their extended positions.

Signed at New Haven in the county of New Haven and State 18th day ofJanuary A. D., 1911.

CLAYTON GUY COOKE. Witnesses: E. M. HASTINGS, J. D. TERRILL.

of Connecticut this

